Home / 27,617.94-38,113.20-15,042.72

Finding the Fourth Proportional to 27,617.94, 38,113.20 and 15,042.72

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Solution

The fourth proportional to 27,617.94, 38,113.20 and 15,042.72 is: 20,759.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,617.94 : 38,113.20 = 15,042.72 : x
  2. Step 2: Convert to fraction form
    27,617.94/38,113.20 = 15,042.72/x
  3. Step 3: Cross multiply
    27,617.94x = 38,113.20 × 15,042.72
  4. Step 4: Simplify right side
    27,617.94x = 573,326,195.90
  5. Step 5: Solve for x
    x = 573,326,195.90/27,617.94
  6. Step 6: Final answer
    x = 20,759.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.